Grunt watch warning: EPERM, operation not permitted
I have a very annoying problem with gruntjs and grunt-contrib-watch plugin. After some time, I can not define, it may be half an hour or two hours of work (it's random) the console spits out this error:
Running "watch" task
Waiting...Warning: EPERM, operation not permitted 'C:\dev\project\app\index.html~RF97bf99.TMP'
it repeats ~50 times, and next this:
Warning: An error occurred while processing a template (An error occurred while processing a templat
e (Maximum call stack size exceeded).).
Warning: An error occurred while processing a template (An error occurred while processing a templat
e (An error occurred while processing a template (Maximum call stack size exceeded).).).
Warning: An error occurred while processing a template (An error occurred while processing a templat
e (An error occurred while processing a template (An error occurred while processing a template (Max
imum call stack size exceeded).).).).
Warning: An error occurred while processing a template (An error occurred while processing a templat
e (An error occurred while processing a template (An error occurred while processing a template (An
error occurred while processing a template (Maximum call stack size exceeded).).).).).
My Grunfile.js:
'use strict';
module.exports = function (grunt) {
// Load all grunt tasks
require('load-grunt-tasks')(grunt);
// Show elapsed time at the end
require('time-grunt')(grunt);
grunt.initConfig({
// Project settings
project: {
app: 'app',
dist: 'dist'
},
bootstrap: {
src: 'bower_components/sass-bootstrap',
pkg: grunt.file.readJSON('bower_components/sass-bootstrap/package.json'),
banner: '/*!\n' +
' * Bootstrap v<%= bootstrap.pkg.version %> by @fat and @mdo\n' +
' * Copyright <%= grunt.template.today("yyyy") %> <%= bootstrap.pkg.author %>\n' +
' * Licensed under <%= _.pluck(bootstrap.pkg.licenses, "url").join(", ") %>\n' +
' *\n' +
' * Designed and built with all the love in the world by @mdo and @fat.\n' +
' */\n\n',
jqueryCheck: 'if (typeof jQuery === "undefined") { throw new Error("Bootstrap requires jQuery") }\n\n'
},
watch: {
sass: {
files: ['<%= project.app %>/sass/{,*/}*.scss'],
tasks: ['sass:dev', 'autoprefixer'],
options: {
spawn: false,
livereload: true
},
},
js: {
files: [
'<%= project.app %>/js/{,*/}*.js',
'!<%= project.app %>/js/vendor/{,*/}*.js',
'!<%= project.app %>/js/plugins/{,*/}*.js'
],
options: {
livereload: true
}
},
livereload: {
options: {
livereload: '<%= connect.options.livereload %>'
},
files: [
'<%= project.app %>/{,*/}*.html',
'<%= project.app %>/css/{,*/}*.css',
'<%= project.app %>/images/{,*/}*.{gif,jpeg,jpg,png,svg,webp}'
]
}
},
connect: {
options: {
port: 9000,
livereload: 35729,
// Change this to '0.0.0.0' to access the server from outside
hostname: 'localhost'
},
livereload: {
options: {
open: true,
base: '<%= project.app %>'
}
},
dist: {
options: {
open: true,
base: '<%= project.dist %>',
livereload: false
}
}
},
sass: {
options: {
includePaths: ['<%= bootstrap.src %>/lib/']
},
dev: {
files: {
'<%= project.app %>/css/app.css': '<%= project.app %>/sass/app.scss'
}
},
dist: {
files: {
'<%= project.app %>/css/app.css': '<%= project.app %>/sass/app.scss'
}
}
},
autoprefixer: {
options: {
browsers: ['last 2 version']
},
dist: {
files: [{
expand: true,
cwd: '<%= project.app %>/css/',
src: '{,*/}*.css',
dest: '<%= project.app %>/css/'
}]
}
},
concat: {
options: {
nonull: true,
separator: '\n\n'
},
bootstrap: {
options: {
banner: '<%= bootstrap.banner %><%= bootstrap.jqueryCheck %>'
},
src: [
'<%= bootstrap.src %>/js/transition.js',
// '<%= bootstrap.src %>/js/alert.js',
// '<%= bootstrap.src %>/js/button.js',
// '<%= bootstrap.src %>/js/carousel.js',
'<%= bootstrap.src %>/js/collapse.js',
'<%= bootstrap.src %>/js/dropdown.js',
// '<%= bootstrap.src %>/js/modal.js',
// '<%= bootstrap.src %>/js/tooltip.js',
// '<%= bootstrap.src %>/js/popover.js',
// '<%= bootstrap.src %>/js/scrollspy.js',
// '<%= bootstrap.src %>/js/tab.js',
// '<%= bootstrap.src %>/js/affix.js'
],
dest: '<%= project.app %>/js/plugins/bootstrap.js'
},
plugins: {
files: {
'<%= project.app %>/js/plugins.js': ['<%= project.app %>/js/plugins/bootstrap.min.js', '<%= project.app %>/js/plugins/*.min.js']
}
}
},
uglify: {
bootstrap: {
options: {
banner: '<%= bootstrap.banner %>'
},
files: {
'<%= project.app %>/js/plugins/bootstrap.min.js': '<%= concat.bootstrap.dest %>'
}
},
all: {
options: {
preserveComments: 'some',
report: 'min'
},
files: [{
expand: true,
cwd: '<%= project.app %>/js/',
src: ['*.js', '!plugins.js'],
ext: '.min.js',
dest: '<%= project.app %>/js/'
}]
}
},
cssmin: {
options: {
report: 'min'
},
dist: {
expand: true,
cwd: '<%= project.app %>/css/',
src: ['*.css', '!*.min.css'],
dest: '<%= cssmin.dist.cwd %>',
ext: '.min.css'
}
},
imagemin: {
dist: {
files: [{
expand: true,
cwd: '<%= project.app %>/img',
src: ['{,*/}*.{gif,jpeg,jpg,png}'],
dest: '<%= project.dist %>/img'
}]
}
}
});
// Register tasks
// ==================================================
// Run local server
grunt.registerTask('serve', function (target) {
if (target === 'dist') {
return grunt.task.run(['build', 'connect:dist:keepalive']);
}
grunt.task.run([
'connect:livereload',
'watch'
]);
});
// Build JS
grunt.registerTask('build-js', [
'concat:bootstrap',
'uglify',
'concat:plugins'
]);
// Build CSS
grunt.registerTask('build-css', [
'sass:dist',
'autoprefixer',
'cssmin'
]);
// Minify images
grunt.registerTask('test', ['imagemin']);
// grunt.registerTask('default', ['']);
};
package.json (all dependencies are up to date):
{
"name": "project",
"version": "0.0.0",
"dependencies": {},
"devDependencies": {
"load-grunt-tasks": "~0.2.1",
"time-grunt": "~0.2.6",
"grunt": "~0.4.2",
"grunt-contrib-watch": "~0.5.3",
"grunt-contrib-connect": "~0.6.0",
"grunt-autoprefixer": "~0.6.3",
"grunt-contrib-concat": "~0.3.0",
"grunt-contrib-uglify": "~0.2.7",
"grunt-contrib-cssmin": "~0.7.0",
"grunt-sass": "~0.9.0",
"jpegtran-bin": "~0.2.0",
"grunt-contrib-imagemin": "~0.4.0"
}
}
I'm on Windows 7 32-bit, gruntjs v.0.4.2, nodejs v0.10.22. Any ideas what may causes this problem? And how would I fix it? Thanks a lot.
Answer
I had a similar problem "EPERM, operation not permitted..." and it was because i didn't opened the CMD in administrator mode. So right click on CMD and run as administrator. This solved my error.